For the purposes of the present document, the terms and definitions given in
TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in
TR 21.905.
Direct C2 communication:
the UAV controller and UAV establish a direct C2 link to communicate with each other and both are registered to the 5G network using the radio resource configured and scheduled provided by the 5G network for direct C2 communication.
Network-Assisted C2 communication:
the UAV controller and UAV register and establish respective unicast C2 communication links to the 5G network and communicate with each other via 5G network. Also, both the UAV controller and UAV may be registered to the 5G network via different NG-RAN nodes. The 5G network needs to support mechanism to handle the reliable routing of C2 communication.
Remote Identification (Remote ID) of UAS:
The ability of a UAS in flight to provide identification and tracking information that can be received by other parties, to facilitate advanced operations for the UAS (such as Beyond Visual Line of Sight operations as well as operations over people), assist regulatory agencies, air traffic management agencies, law enforcement, and security agencies when a UAS appears to be flying in an unsafe manner or where the UAS is not allowed to fly
[22].
Unmanned Aerial System (UAS):
Composed of Unmanned Aerial Vehicle (UAV) and related functionality, including command and control (C2) links between the UAV and the UAV controller, the UAV and the network, and for remote identification. A UAS is comprised of a UAV and a UAV controller.
UAS Service Supplier (USS):
An entity that provides services to support the safe and efficient use of airspace by providing services to the operator / pilot of a UAS in meeting UTM operational requirements. A USS can provide any subset of functionality to meet the provider's business objectives (e.g., UTM, Remote Identification)
[21].
UAS Traffic Management (UTM):
A set of functions and services for managing a range of autonomous vehicle operations (e.g. authenticating UAV, authorizing UAS services, managing UAS policies, and controlling UAV traffics in the airspace)
[21].
UAV:
The Unmanned Aerial Vehicle (also called remotely piloted aircraft or drone) of a UAS.
UAV controller:
The UAV controller of a UAS enables a pilot to control a UAV.
UTM-Navigated C2 communication:
the UAV has been provided a pre-scheduled flight plan, e.g. array of 4D polygons, for autonomous flying, however UTM still maintains a C2 communication link with the UAV in order to regularly monitor the flight status of the UAV, verify the flight status with up-to-date dynamic restrictions, provide route updates, and navigate the UAV whenever necessary.
For the purposes of the present document, the following terms given in
TS 22.125 apply
Command and Control (C2) Communication
For the purposes of the present document, the abbreviations given in
TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905.
BVLOS
Beyond Visual Line of Sight
C2
Command and Control
Remote ID
Remote Identification
UAS
Unmanned Aerial System
UAV
Unmanned Aerial Vehicle
UAV-C
Unmanned Aerial Vehicle Controller
USS
UAS Service Supplier
UTM
UAS Traffic Management